cccc cccf ccci cccl ccfc ccff ccfi ccfl ccic ccii ccil cclc ccli cfcf cfcl cicc cici ciff cifl ciii cili cilk cill ckck ckcl ckfi cklf clic clif clii clik f--k fccf fcic fcii ffcc ffff ffii ficc fick fifc fiff fifi fiii fiil fiki fili filk fill flcl flic flii flik iccc iccf icci iccl icll ific ifil iiii ikki ilic ilki ill- illi k-ci kccc kcci kcck kccl kcfc kcfi kcfl kcic kcif kcii kcil kckc kckf kckk kckl kclc kclf kcli kclk kcll kfcf kfff kffk kfil kflc kflf kfli kfll kicc kick kicl kiff kifl kiic kiii kiik kikc kikf kiki kikk kili kilk kill kkci kkck kkcl kkfi kkic kkik kkkk kklc kklf kkli kkll klcc klci klck klcl klfc klff klfi klic klif klik klil klkc klkk klkl kllc kllk lccc lcfc lfcc lick liff lifl liii lili lill llcc lllc llll